US3791128A - Method and apparatus for stopping and starting one or more open-end-spinning devices - Google Patents

Method and apparatus for stopping and starting one or more open-end-spinning devices Download PDF

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Publication number
US3791128A
US3791128A US00200024A US3791128DA US3791128A US 3791128 A US3791128 A US 3791128A US 00200024 A US00200024 A US 00200024A US 3791128D A US3791128D A US 3791128DA US 3791128 A US3791128 A US 3791128A
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Prior art keywords
speed
spinning
yarn
drawoff
open
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US00200024A
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English (en)
Inventor
H Landwehrkamp
H Niestroj
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Rieter Ingolstadt Spinnereimaschinenbau AG
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Schubert und Salzer Maschinenfabrik AG
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Priority claimed from DE19702058604 external-priority patent/DE2058604B2/de
Priority claimed from DE19712130669 external-priority patent/DE2130669A1/de
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/48—Piecing arrangements; Control therefor

Definitions

  • a plurality of spinning apparatuses may have individual drive motors connected electrically to the common motor. Interposed between the main operating switch and the drive motor are a pair of intermediate circuits, one circuit having a potentiometer control to limit the motor to a low variable speed range, and the second circuit having relatively high speed range including normal production speed.
  • Selector switches cooperate to connect the drive motor to one or the other of the intermediate circuits, but one or more of such selector switches may be operable manually or by cam control drums to effect switching from one intermediate circuit to another to effect low speed operation for an indefinite or a predetermined time to facilitate bobbin-changing or return of an escaped yarn end, for example.
  • the fibre material supplied is in the form of a sliver and is introduced in an opened condition into a spinning element, from which it is removed as a thread in the ready spun condition.
  • a spinning element On stopping the open-end-spinning device, the latter is separated from its drive by a coupling or a clutch and for the starting operation the open-endspinning device is connected by a coupling with its drive (see Swiss specification No. 443,081 and East German specification No. 63,308).
  • the spinning device thus always operates with a constant speed of production, the speed of rotation of the spinning element, the feed speed and the drawoff speed for the yarn or thread being selected in accordance with the material, desired yarn number and twist by changing the transmission ratio. Stopping and starting spinning are thus carried out with the desired production speed.
  • starting spinning must occur within a definite period of time, which depends on the production speed. If this period of time for starting spinning is departed from by making the period too long or too short, starting operations lead to yarn breakages or thickened parts in the yarn which has been pieced up. Thus, starting spinning requires a high degree of skill from the machine operator. In the case of spinning turbines the danger of yarn breakage is made still greater by the fact that if drawoff is started too late the yarn end provided for piecing up is excessively twisted or does not stand up to the high centrifugal force occurring with the high speed of rotation of the turbine.
  • One aim of the invention is therefore to provide a method for stopping and starting one or more openend-spinning devices and also a simple and secure device for carrying out the method, with whose help the danger of faults such as yarn breakages or thick or thin parts is avoided or at least substantially reduced.
  • the present invention consists in a method for stopping and starting at least one open-end-spinning device, characterised in that the stopping and starting are carried out while maintaining the speed ratios between the driven elements, such as fibre supply, yarn drawoff, and the spinning element at a low yarn drawoff speed at which various servicing operations can be carried out.
  • the method of the present invention not only facilitates starting-up spinning after stopping the spinning device or a whole spinning machine, but also simplifies restarting spinning after dealing with a yarn breakage.
  • a manually effected change in bobbins is carried out while maintaining the speed relationship between the driven elements of the spinning device at a low yarn drawoff speed. Since the speed ratios remain unchanged, these changes in speed can be carried out without the yarn quality or characteristics being changed. Conveniently the low drawoff speed can always have the same value, independently of the actual production speed used.
  • the invention further consists in an apparatus for stopping an open-end-spinning device, comprising means defining a spinning chamber, a fibre supply device, a yarn drawoff device, a main switch, a drive motor which serves for driving the fibre supply device and the fibre drawoff device and which can be switched off and on by means of the main switch, at least two potentiometers connected in parallel between the main switch and the drive motor, and at least one change-over switch between the potentiometers and the drive motor.
  • the change-over switch makes possible the selective switching-over from one potentiometer to the other and in this manner determines the speed of rotation of the drive motor.
  • switching-over switches are provided in tandem so that one can override the other, at least one switchingover switch being provided with a timing member which, after the expiry of a certain period of time following actuation of such member, actuates the for switching from the potentiometer for slow running speed to the potentiometer for highspeed running of the drive motor.
  • the timing member can be constructed in various different manners, for example as a timing relay.
  • the timing member consists of a control drum.
  • the switching-over operation is subject to larger variations in timing than the starting operation for the open-end-spinning machine, it is preferable that not only starting but also the stopping of the spinning machine should be arranged to be carried out with the help of the control drum so that both switching-over operations can be carried out automatically.
  • the control drum for stopping can be coupled with the drive motor in such a manner that the control drum is driven synchronously with the drive motor.
  • FIG. '1 is a diagrammatic view of the subject matter of the invention.
  • FIG. 2 shows diagrammatically a different embodiment of the subject matter of the invention with a timing member for starting spinning.
  • FIG. 3 shows a further construction diagrammatically with separate control drums for starting spinning and stopping spinning.
  • FIG. 4 shows part of a further embodiment of the invention.
  • the operations for starting spinning and the changing of bobbins are carried out at a lower drawoff speed of the spinning device.
  • FIG. 1 shows a first embodiment of the subject matter of the invention, parts not absolutely necessary for understanding the invention being omitted.
  • the spinning element is mounted in a conventional manner in a housing 1 and is driven by a belt 10, while the belt is driven by a drive motor 2 via a shaft and a belt pulley 21. Furthermore, on the shaft 20 a bevel gear wheel 23 is mounted, which via a bevel gear wheel 24 drives a shaft 25 with the drawoff rollers 26.
  • the drawoff rollers 26 can be sepated from the drive in a conventional manner with the help of a coupling 27.
  • the shaft 25 drives via a chain 28 or other suitable transmission the winding-up device, not shown, for the yarn 29 and via a chain 11 it drives an opening roller, arranged on the shaft 12, of the supply device 13. From the shaft 12 the supply roller of the supply device 13, is driven via a chain 14, a shaft 15 and a belt 16.
  • the drive motor 2 can be connected through main switch 3 with the three phase main line.
  • two potentiometers 4 and 40 are provided which can be connected by the main switch 3 with a DC current source for the control circuit.
  • the potentiometers 4 and 40 are connected with a changeover switch 41 arranged between them and the drive motor 2. Between this change-over switch 41 and the drive motor 2 there is furthermore a starting device 42 for starting up the motor and an amplifier 43.
  • a tachometer 22 is connected with the shaft 20.
  • the open-end-spinning machine is switched on to start the machine from zero speed, which constitutes the lower limit speed by actuating the main switch 3 and the change-over switch 41 is connected with the potentiometer 4.
  • This potentiometer serves for selecting the low speed for starting spinning and changing bobbins.
  • the drive motor 2 can be accelerated in the manner determined by the starting device 42 only as far as the speed determined by the potentiometer 4, and simultaneously the spinning element 1, the drawoff rollers 26 and the supply device 13 only reach the low speed determined by the transmission ratio.
  • the drawoff rollers 26 can be switched on with a time lag, so that the quantity of fibre necessary for starting spinning can be supplied to the spinning element.
  • the coupling 27 is provided, which is controlled in a suitable manner, for example by a timing relay actuated by the main switch 3.
  • starting spinning at all spinning positions can be carried out in a conventional manner by supplying the yarn back into the spinning devices.
  • the potentiometer 40 When spinning has been restarted, the potentiometer 40 is connected through the change-over switch 41 with the starting device 42 so that the drive motor 2 is brought up to the full production speed which constitutes the upper limit speed.
  • drawoff If the drawoff speed is 60 metres per minute, that is to say 1 mm per millisecond, drawoff must be switched off within 185 milliseconds. In the same condition the stopping of draw-off at a draw-off speed of 100 meters per minute must be effectuated within 1 l 1 milliseconds while in the case of a drawoff speed of 30 metres per minute 370 milliseconds are available.
  • the changeover switch 41 For reducing the draw-off speed to zero, that is, to a rest speed for stopping the open-end-spinning machine the changeover switch 41 is moved over to provide a connection with the potentiometer 4.
  • the drive motor 2 is slowed down until the low speed, intermediate of the rest speed and full production speed, determined by the potentiometer 4 is reached.
  • the correctly timed declutching of the coupling 27 for the drawoff roller 26 can be carried out without difficulty using time relays and the like so that one can be sure that the yarn 29 is not drawn out owing to excessively late stopping of the drawoff rollers 26 from the spinning element.
  • the production speed can be reduced by hand, in the case of individual restarting of spinning or for bobbin changing, so that the drawoff speed necessary for this purpose is achieved without yarn quality sufiering as a result.
  • the drive motor 2 is slowed by manual actuation of the change-over switch 41 down to the low speed determined by the potentiometer 4 so that for this working operation a comparatively long period of time is available.
  • the potentiometer 40 is again connected with the change-over switch 41 so that the drive motor 2 is accelerated up to the full production speed again.
  • FIG. 2 shows a different embodiment of the subject matter of the invention in which two change-over switches 44 and 45 are arranged in tandem so as to provide an overriding function, the subordinate changeover switch 44 being provided with a control disc 5 to act as a timing member.
  • the control disc 5 is driven by an auxiliary motor 50 which can be switched on by the main switch 30.
  • a further control disc 51 also driven by auxiliary motor 50, opens a contact 52 when the switching on operation is concluded, that is when switching-over of the change-over switch 44 to the potentiometer 40 has been effected, to deenergize motor 50.
  • the two change-over switches 44 and 45 are in the position shown.
  • the starting device 42 for the drive motor 2 is connected with the potentiometer 4 so that the drive motor 2 can initially only be accelerated up to the maximum speed determined by setting this potentiometer 4.
  • the switch 32 overriding the contact 52, the auxiliary motor 50 is also connected with the current supply and starts the control discs 50 and 51.
  • a cam element 53 on the control disc 5 releases the change-over switch 44, which now connects the highspeed potentiometer meter 40 with the starting device 42 so that the drive motor 2 now runs up to full speed.
  • the change-over switch 45 is operated by hand. On releasing the change-over switch the spinning machine is accelerated again up to the full production speed. If, however, the main switch 30 is opened before switch 45 is released, the spinning machine is stopped.
  • timing member for the actuation of the change-over switch 44 it is not absolutely essential for the timing member for the actuation of the change-over switch 44 to be constructed as a control disc 5 and it is possible instead to use a timing relay. Since, however, not only the change-over switch 44 but also the fan of the vacuum shaft (if provided), the couplings (not shown) for the individual supply devices 13, the coupling 27 for the draw-off rollers, the yarn monitoring device (not shown), and other parts must be put into operation at precisely determined instants in time, a control disc or control drum (FIG. 3) constituting a timing member is particularly advantageous.
  • the embodiment of the subject matter of the invention shown in FIG. 3 comprises three change-over switches 44, 45 and 46 with an overriding function, the change-over switch nearest to the starting device 42 being arranged to override the change-over switches arranged further from the starting device.
  • the changeover switch 46 is thus arranged to override the changeover switches 45 and 44, while the change-over switch 45 overrides the change-over switch 44 as is the case with the embodiment shown in FIG. 2.
  • the change-over switch 44 is again actuated by a cam element 53 which in this case is arranged on a control drum 55 driven by the auxiliary motor 50.
  • the change-over switch 45 serves for hand actuation while the change-over switch 46 is controlled by a relay 47.
  • a switching-on switch 31 is provided with the parallel connected switch or contact 32 for the auxiliary motor 50 for opening the contact 52 for a short period of time.
  • the on-switch 31 actuates the relay or a contactor 33, which has a control contact 33a for the potentiometers 4 and 40, a self-holding contact 33b, three contacts 330 for the current supply to the drive motor 2 and a contact 33d for the auxiliary motor 50.
  • an off-switch 34 is provided which actuates a relay or contactor 35.
  • This relay or contactor has a control contact 35a for the abovementioned relay 47 and a self-holding contact 35b.
  • control drum 6 has, inter alia, cam elements and 61, of which the cam element 60 controls a contact 36, arranged in the holding circuit of the relay or the contactor 33, and the cam element 61 controls a contact 37 in the holding circuit of the relay or contactor 35.
  • the control drum 6 can be connected with drive motor 2 by means of a coupling 62 controlled by the relay 47.
  • the cam element 53 whose length is chosen accordingly, releases the change-over switch 44 so that the latter is connected with the potentiometer 40 and the drive motor 2 and the devices driven by the latter now reach the full production speed. Shortly after this the cam element 54 releases the contact 52 to interrupt the supply of current to the auxiliary motor 50 and the control drum 55 remains stationary.
  • the change-over switch 45 is suitably operated by hand.
  • the stopping of the spinning machine is carried out as follows:
  • the relay or the contactor 35 is excited, which closes its contacts 35a and 35b and as a result the relay 47 is also excited which connects the change-over switch 46 with the potentiometer 4 for the low speed and through its contact 48 supplies the coupling 62 with current.
  • the coupling 62 connects the control drum 6 with the drive motor 2 so that the drum is driven, in accordance with the speed of rotation of the drive motor 2 via the step-down gearing 63, at a correspondingly lower speed of rotation.
  • the holding circuit of the relay or contactor 33 is interrupted by the opening of the contact 36 by cam 60 and the relay or contactor 33 is opened so that the potentiometer 4 is no longer supplied with current and the drive motor 2 is stopped.
  • the drive motor 2 turns the control drum somewhat further until the cam element 61 opens the contact 37 in the holding circuit of the relay or contactor 35.
  • the relay or contactor 35 and the relay 47 dependent on it are de-energised and consequently the coupling 62 cuts off the control drum 6 of the drive motor 2 so that the control drum stops.
  • the relay 47 can be a timing relay which actuates the coupling 62 only after a certain time has expired.
  • the relay can also, however, be actuated by the tachometer 22 (FIG. 2) when the drive motor 2 has been slowed down to a certain low speed which has been previously determined. In this respect the reduction in speed can be aided by a brake controlled by the off-switch 34.
  • the spinning element can be driven by an individual drive motor 17 (FIG. 2) in accordance with the speed of rotation of the drive motor 2 instead of via a belt 10, the drive motor 17 being connected electrically with the tachometer 22.
  • control drum 6 can be connected by a coupling 62 with the drive motor 2, though it is possible, instead of this connection, to provide an individual auxiliary motor similar to that in the case of the control drum 55.
  • control drum 55 may be arranged to be capable of being coupled with the drive motor 2.
  • potentiometers 4 are provided for controlling the lowest speed and the potentiometer 49 is provided for controlling the highest speed.
  • the potentiometer 4 is provided for controlling the lowest speed and the potentiometer 49 is provided for controlling the highest speed.
  • These three potentiometers are provided, in the example shown, with two change-over switches 7 and 70. Each change-over switch can assume three positions, in accordance with the number of potentiometers.
  • the change-over switch 7 is actuated by an off-set cam element and the changeover switch is actuated by hand.
  • potentiometers 4, 40 and 49 it is also possible to provide groups of potentiometers.
  • two potentiometers per potentiometer group serve for determining the upper and lower limit of a speed range while the third potentiometer is used for the actual setting of the speed within the respective range.
  • the construction of the spinning elements is of no consequence for the present invention.
  • the spinning elements can, for example, be used in conjunction with spinning turbines (U. S. specification No. 3,440,812), rotating or stationary spinning funnels (Czech specification No. 87,947, French specification No. 1,442,699, or chambers in which the fibres moving with a medium become attached to a freely rotating yarn end (U.S. specification No. 2,91 1,783).
  • the invention makes possible a simple automatic and also manual operation for the critical phases of starting spinning after stopping the machine, or on dealing with a yarn breakage which cannot be dealt with automatically, or bobbin changing can be carried out at a lower working speed. Since the speed ratio between the individual devices of the open-end-spinning machine always remains constant, the changes in speed are also not apparent in the finished yarn.
  • a method for stopping an open-end-spinning device including spinning chamber means, sliver feed means and yarn drawoff means, all of said means being driven at constant speed ratios in relation to each other, comprising the steps of decelerating the spinning device from the full spinning speed to a selected low speed while maintaining said constant ratio, stopping the spinning device only after such selected low spinning speed has been reached, and subsequently starting the open-end-spinning device by accelerating the spinning speed up to a selected low speed, feeding a yarn end back into the spinning device and only thereafter accelerating the spinning speed up to full spinning speed.
  • a method of exchanging yarn-receiving bobbins in an open-end-spinning device including yarn-receiving bobbins, spinning chamber means, sliver feed means and yarn drawoff means, all of said means being driven at constant speed ratios in relation to each other, comprising the steps of reducing the spinning speed to a selected low speed while maintaining said constant ratio, manually exchanging a yarn-receiving bobbin, and again accelerating the spinning speed up to full speed after the yarn-receiving bobbin has been exchanged.
  • a method of repairing yarn breakages in an openend-spinning device including spinning chamber means, sliver feed means and yarn drawoff means, all of said means being driven at constant speed ratios in relation to each other, comprising the steps of reducing the spinning speed to a selected low speed while maintaining said constant ratio, repairing a yarn breakage, and again accelerating the spinning speed to full speed after said repairing operation has been effected.
  • Speed control apparatus for an open-end-spinning device having spinning means, a fiber supply device and a yarn drawoff device comprising drive means for driving the fiber supply device and the yarn drawoff device, main switch means for supplying power to said drive means, two potentiometer means connected in parallel between said drive means and said main switch means, and selector switch means operable to selectively connect drive means and one of said potentiometer means, said selector switch means including a plurality of selector switches, each operable between a position for forming a series connection between one potentiometer means and the drive means and a bypass position for connecting the drive means and the other potentiometer means, and timing means engageable with one of said selector switches to control its position and the length of time that such one selector switch is held in one of its positions.
  • timing means includes a control drum.
  • the speed control apparatus defined in claim 6, further including auxiliary drive means, and coupling means for selectively coupling said auxiliary drive means and the control drum.
  • timing means includes a first control drum to control increases in spinning speed, and a second control drum to control decreases in spinning speed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US00200024A 1970-11-28 1971-11-18 Method and apparatus for stopping and starting one or more open-end-spinning devices Expired - Lifetime US3791128A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19702058604 DE2058604B2 (de) 1970-11-28 1970-11-28 Verfahren und vorrichtung zum stillsetzen und wiederanfahren einer offen- end-spinnvorrichtung
DE19712130669 DE2130669A1 (de) 1971-06-21 1971-06-21 Vorrichtung zum stillsetzen und/oder anspinnen einer offen-end-spinnvorrichtung

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US3791128A true US3791128A (en) 1974-02-12

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US00200024A Expired - Lifetime US3791128A (en) 1970-11-28 1971-11-18 Method and apparatus for stopping and starting one or more open-end-spinning devices

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US (1) US3791128A (de)
AR (1) AR200234A1 (de)
BE (1) BE775906A (de)
CH (1) CH525295A (de)
ES (1) ES397398A1 (de)
FR (1) FR2115180B1 (de)
GB (1) GB1373247A (de)
HK (1) HK26278A (de)
IT (1) IT940793B (de)
NL (1) NL166287C (de)

Cited By (28)

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US3877209A (en) * 1972-09-15 1975-04-15 Elitex Zavody Textilniho System for measuring the draft of open-end spinning machines
US3877210A (en) * 1972-09-15 1975-04-15 Elitex Zavody Textilniho System for measuring the count and twist of spun yarn in open-end spinning
US3878671A (en) * 1972-09-15 1975-04-22 Elitex Zavody Textilniho System for measuring the twist of spun yarn in open-end spinning
US3882663A (en) * 1972-08-30 1975-05-13 Elitex Zavody Textilniho Device for sequential starting and stopping separate groups of operating means in adjustable time intervals
US3939638A (en) * 1973-03-20 1976-02-24 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Method for automatically starting and stopping an open-end spinning machine
US3945183A (en) * 1973-10-13 1976-03-23 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Method and apparatus for starting a thread in open-end spinning devices
US3987610A (en) * 1973-12-04 1976-10-26 Fritz Stahlecker Method and apparatus for start-spinning a thread on an open-end spinning unit of an open-end spinning machine
US4020621A (en) * 1973-07-29 1977-05-03 Hironori Hirai Method of and apparatus for ending the broken yarn in an open-end spinning system
US4059946A (en) * 1974-12-07 1977-11-29 Fritz Stahlecker Method and apparatus for start-spinning a thread on open-end spinning units
DE2708936A1 (de) * 1977-03-02 1978-09-07 Fritz Stahlecker Verfahren zum anspinnen eines fadens an spinnaggregaten einer offenend- spinnmaschine und offenend-spinnmaschine zum durchfuehren des verfahrens
USRE30167E (en) * 1973-04-30 1979-12-18 Apparatus and method for start-spinning on an open-end spinning machine
USRE30201E (en) * 1973-12-04 1980-02-05 Method and apparatus for start-spinning a thread on an open-end spinning unit of an open-end spinning machine
US4228642A (en) * 1977-11-17 1980-10-21 Platt Saco Lowell Limited Method and apparatus for stopping an open-end spinning machine
US4276741A (en) * 1973-08-16 1981-07-07 Fritz Stahlecker Method and apparatus for start-spinning a thread on an open-end spinning unit
US4288975A (en) * 1979-03-22 1981-09-15 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Method and apparatus for starting a spinning machine
US4395870A (en) * 1980-06-26 1983-08-02 Schubert & Salzer Method and device for piecing a yarn in a spinning rotor of an open end spinning device
US4694643A (en) * 1985-01-18 1987-09-22 Zinser Textilmaschinen Gmbh Spinning or twisting machine
US4760688A (en) * 1984-12-24 1988-08-02 Schubert & Salzer Maschinenfabrik Open-end spinning machine with plural spinning stations and thread joining process therefor
US4817371A (en) * 1986-06-11 1989-04-04 Zinser Textilmaschinen Gmbh Individual-motor drive method of and apparatus for spindles of a spinning machine
US4899528A (en) * 1987-06-12 1990-02-13 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Control device to drive and stop an open-end spinning element
US5152132A (en) * 1989-05-05 1992-10-06 Michael Strobel Process and device for the piecing of a yarn in an open-end spinning machine operating with a spinning rotor
US5243812A (en) * 1989-05-05 1993-09-14 Schubert & Salzer Maschinenfabrik Ag Device for the piecing of a yarn in a open-end spinning machine operating with a spinning rotor
US5369945A (en) * 1992-02-10 1994-12-06 Barmag Ag Method and apparatus for controlling the yarn tension in a false twist texturing machine
US5423171A (en) * 1988-05-03 1995-06-13 Rieter Ingolstadt Spinnereimaschinenbau Ag Method and device for joining yarn in an open-end spinning means
US5535580A (en) * 1994-02-12 1996-07-16 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device for piecing on an open-end spinning device
US5664409A (en) * 1995-06-30 1997-09-09 Barmag Ag Method of controlling the tension of an advancing yarn
US20140305209A1 (en) * 2013-04-11 2014-10-16 Olivier L Dehousse Apparatus to measure the speed at which, wheels in rotation present an appearing rotation speed inversion, the so called wagon wheel effect, with either one or two independent disks in rotation with various spokelikepatterns, and considering further characteristics specific to our design
US20150320351A1 (en) * 2014-05-12 2015-11-12 Olivier L. Dehousse Apparatus to measure the time and ability to process, react to, and synchronize complex visual effects relative to the detection of images in motion (based on the shannon-nyquist signal theory) with complex sounds or sound variations

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4054024A (en) * 1974-09-30 1977-10-18 Hironori Hirai Apparatus for stopping and restarting the operation of an open-end spinning system
CS255810B1 (en) * 1985-01-25 1988-03-15 Jiri Sloupensky Device for starting up an open-end spinning machine with a spinning rotor
CN103382589B (zh) * 2013-07-31 2015-11-18 上海淳瑞机械科技有限公司 一种转杯纺纱机的纺纱器用拉钩结合件

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US2946178A (en) * 1955-07-30 1960-07-26 Hamel Edraund Reversible spindle drive for textile machine
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Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882663A (en) * 1972-08-30 1975-05-13 Elitex Zavody Textilniho Device for sequential starting and stopping separate groups of operating means in adjustable time intervals
US3877210A (en) * 1972-09-15 1975-04-15 Elitex Zavody Textilniho System for measuring the count and twist of spun yarn in open-end spinning
US3878671A (en) * 1972-09-15 1975-04-22 Elitex Zavody Textilniho System for measuring the twist of spun yarn in open-end spinning
US3877209A (en) * 1972-09-15 1975-04-15 Elitex Zavody Textilniho System for measuring the draft of open-end spinning machines
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US3945183A (en) * 1973-10-13 1976-03-23 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Method and apparatus for starting a thread in open-end spinning devices
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US4395870A (en) * 1980-06-26 1983-08-02 Schubert & Salzer Method and device for piecing a yarn in a spinning rotor of an open end spinning device
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US5423171A (en) * 1988-05-03 1995-06-13 Rieter Ingolstadt Spinnereimaschinenbau Ag Method and device for joining yarn in an open-end spinning means
US5152132A (en) * 1989-05-05 1992-10-06 Michael Strobel Process and device for the piecing of a yarn in an open-end spinning machine operating with a spinning rotor
US5243812A (en) * 1989-05-05 1993-09-14 Schubert & Salzer Maschinenfabrik Ag Device for the piecing of a yarn in a open-end spinning machine operating with a spinning rotor
US5369945A (en) * 1992-02-10 1994-12-06 Barmag Ag Method and apparatus for controlling the yarn tension in a false twist texturing machine
US5535580A (en) * 1994-02-12 1996-07-16 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device for piecing on an open-end spinning device
US5664409A (en) * 1995-06-30 1997-09-09 Barmag Ag Method of controlling the tension of an advancing yarn
US20140305209A1 (en) * 2013-04-11 2014-10-16 Olivier L Dehousse Apparatus to measure the speed at which, wheels in rotation present an appearing rotation speed inversion, the so called wagon wheel effect, with either one or two independent disks in rotation with various spokelikepatterns, and considering further characteristics specific to our design
US20150320351A1 (en) * 2014-05-12 2015-11-12 Olivier L. Dehousse Apparatus to measure the time and ability to process, react to, and synchronize complex visual effects relative to the detection of images in motion (based on the shannon-nyquist signal theory) with complex sounds or sound variations

Also Published As

Publication number Publication date
FR2115180A1 (de) 1972-07-07
NL166287B (nl) 1981-02-16
ES397398A1 (es) 1974-05-16
IT940793B (it) 1973-02-20
GB1373247A (en) 1974-11-06
BE775906A (fr) 1972-03-16
AR200234A1 (es) 1974-10-31
FR2115180B1 (de) 1974-06-07
NL166287C (nl) 1981-07-15
NL7116283A (de) 1972-05-30
CH525295A (de) 1972-07-15
HK26278A (en) 1978-06-02

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